Chemistry: fertilizers – Processes and products – Organic material-containing
Patent
1983-08-19
1985-02-19
Lander, Ferris H.
Chemistry: fertilizers
Processes and products
Organic material-containing
71 36, 71 59, 71 61, 71 63, 71 6411, C05C 900
Patent
active
045003351
ABSTRACT:
A method is provided for reducing ammonia volatilization loss from ammoniated fertilizers and urea-containing fertilizers which have been applied to the surface of the soil. The fertilizer is applied in the presence of a water soluble compound that (a) has a saturated solution pH between about 5.0 to about 8.0 and (b) in a hydrolyzing system with the soil and the fertilizer will form carbonates having a solubility above about 10.sup.-10 grams per liter. The amount of the water soluble compound is that which is sufficient to suppress the formation of hydroxyl ions that otherwise would be produced in the soil according to the reaction
REFERENCES:
patent: 1699254 (1929-01-01), Schwarz
patent: 1951518 (1934-03-01), Meiser
patent: 1966820 (1934-07-01), Jones
patent: 2022676 (1935-12-01), Kniskern et al.
patent: 3918952 (1975-11-01), Neumiller
patent: 4033746 (1977-07-01), Young
patent: 4073633 (1978-02-01), Young
Fenn and Kissel, "Ammonia Volatilization from Surface Application of Ammonium Compounds on Calcareous Soils: I. General Theory." Soil Sci. Soc. Amer. Proc., 37:855-859, (1973).
Lander Ferris H.
Texas A&M University
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